arrichardson787
arrichardson787
19.05.2020 • 
Mathematics

The graph below shows three different normal distributions. 3 normal distributions are shown. They all peak at the same point, but they all have different heights and widths. Which statement must be true?
Each distribution has a different mean and the same standard deviation.
Each distribution has a different mean and a different standard deviation.
Each distribution has the same mean and the same standard deviation.
Each distribution has the same mean and a different standard deviation

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